Input a number in a function, what is the format of that number in the function?

I have done a function that accepts 1 input which is a number. What is the format of that number inside the function. The reason I ask is that I was trying to define a variable as follows

function pippo(len)
a = len +1;

which gives me the following error: "Index exceeds matrix dimensions."

Answer 1

[Walter Roberson]

I suspect that you accidentally assigned a value to a variable with the same name as your function, so you got a variable reference instead of a function reference. For example if you had

   peppo = peppo(164)

then the first time peppo would refer to the function, but the result would be assigned to the variable peppo and then the next time peppo(164) would try to index position 164 of that variable.

[EL]

I'm not sure I understand what your saying. This is the code I have, where "len" is the object giving me the error:

function searchError(TextData, columnTextDataPosit, columnTextDataCS, len)
exceedLen = len + 1
errorVector = zeros(len,1);

[Walter Roberson]

Please show the routine that you call searchError in.

[EL]

I just simply import a .csv file on matlab that's call textdata. I then call the function

searchError(textdata, 15, 13, 2091)

which is supposed to scroll the file with a for cicle. For routine I believe you mean how I call the function? I'm sorry, not being English I may be mistaken.

[Walter Roberson]

Please post the complete routine, and an exact copy of the error message. Actually, please attach the file that has the code instead of just copy and paste it here.